I think the stencil marks on my old hammer mill indicate 2200-3300RPM. It was originally flat belt driven. I converted it to PTO with a drive taken off an MC grain dryer which was converted to electric motor. I can't tell you the size of the pulleys without measuring them. It takes a 1000 RPM PTO to achieve speed. If I want a coarse grind, or to just crack grain, running much slower works, but the blower part then can't develop enough draw to take the material away. I think if it was set up so the material could just fall away by gravity, it would work.
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Today's Featured Article - Women and Tractors - by Teri Burkholder. The View from the Garage - Never a doubt, everything on our farm is a learning experience. I've been working very hard to get our two rundown Farmall A's sanded, primed , bondo�d, fiberglassed and painted before our big local tractor show called the Tulip Festival. My husband Ben came in the garage one rainy day to see if he could "help". Well if you knew Ben you wouldn't want him anywhere near your spray gun, fiberglass or bondo! So I pulled out the 2 old yucky looking magne
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